- Study Helper
a) Understand the definition of a force in terms of momentum.
b) Action and reaction
c) that the forces involved with two colliding objects are equal and opposite
d) that the forces act for a given amount of time giving rise to the concept of an impulse
e) that the impulse experienced is equal to the change in momentum
f) hence conservation of momentum: that which is lost by one object, is gained by the other.